Defining terms
Classifying Triangles by Side length
Classifying triangles by angles
Classifying angles
General Geometry
100
Define a right triangle
A triangle with one right angle.
100
What type of triangle is this?
An equilateral triangle
100
What type of triangle is this?
A right triangle
100
What is another name for a 90 degree angle?
Right angle
100
What is the measure of all angles in a square?
90 degrees
200
Define Scalene Triangle
three unequal sides
200
What type of triangle is this?
A scalene triangle
200
What type of triangle is this?
An acute triangle
200
What is an obtuse angle?
An angle that measures more than 90 degrees and less than 180 degrees.
200
What do the "ticks" on the sides of a shape mean?
The side lengths are the same or that they are congruent.
300
Define equilateral triangle
All sides of the triangle are equal.
300
What type of triangle is this?
A scalene triangle
300
What type of triangle is this?
An Acute triangle
300
What is an acute angle?
An angle that measures less than 90 degrees.
300
What is an angle?
Two rays that meet at a single endpoint.
400
Define Isosceles triangle
two sides are equal length
400
What type of triangle is this?
An Isosceles triangle
400
What type of triangle is this?
Obtuse triangle
400
What is a reflex angle?
An angle that measures more than 180 degrees and less than 360 degrees.
400
What is the measurement of the angles in an equilateral triangle?
60 degrees
500
Define congruent
the same
500
What type of triangle is this?
Isosceles
500
What type of triangle is this?
Obtuse triangle
500
Solve for the missing angle Y in question B. 
59 degrees.
500
Solve for the missing angle in the triangle: 
50 degrees